Trapping and habitat loss have been dramatically shrinking their populations for more than a century, and now they're faced with new human threats like snowmobiles tearing through their habitat and, ...

At one, a male wolverine burrowed through the snow into an expansive underground ice cave in the thawing permafrost. We later found two more such caves, which had not previously been documented ...

Trapping and habitat loss have been dramatically shrinking their populations for more than a century, and now they're faced with new human threats like snowmobiles tearing through their habitat and, ...